Apparatus for reducing materials



n. H. WARREN.

APPARATUS FOR REDUCING MATERIALS.

APPLICATIGN FILED AUG. l. 1921.

Patented Aug. L R922.

2 SHEETS-SHEET l.

E] Hou/u: 14

R. H.. WARREN.

APPARATUS 1`0R REDUCING MATERIALS. APPLlcAloN FILED AUGJ, 1921.

9424i 59 Patented Aug. l, 1922.

2 SHEETS-SHEET 2.

i if,

RALPH H. WARREN, 0F MONTCLAIR, NEW JERSEY.

.APPARATUS FOR REDUCING MATERIALS.

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To all whomt mag/concern:

Be it known that I, RALPH H. WARREN, a citizen of y the United States,residing at Montclair, in the county ofEsseX and'State 0f .New Jersey,have invented certain new and useful Improvements' in Apparatus forReducing Materials, of which'` the following is a specification.

The'v invention is"- more particularly directed to apparatus-or meansfor reducingv to granular or pulveru'lent form, refractorymat'erialssuch as, for example, cement clinker.

Objects of ,thel invention are to provide for i handling largerquantities of the clinker, or

other material vtobe reduced, than has heretofore been possible, and toeffect the reduction expeditiously and uniformly and withA a minimum ofrejections.

With such and other objects in view, the invention resides in theconstruction, arrangement, and combination of parts hereinafterdescribed and claimed, reference being had to the accompanying drawings,Where- Figure 1 is aplan view of one embodiment of the invention; and4 iy Fig. 2 is' a vertical sectional view of the same.

The improved machine is mounted upon a suitable support, involving, ashere shown, a concrete or other foundation 1, to which is rigidlysecured a metal base 2. A bed-plate 3 is mounted for reciprocatory orendwise movement on the base 2, the latter having a suitable edgeprojection 4 which co-operates with a correspondingly reduced part 5 ofthe bed-plate to limit said movement. The bedplate may also have adepending skirt 6 adapted to co-operate with the base to prevent undueplay of the bed-plate. The bedplate is formed or provided on three sideswith a marginal upstanding flange 7, the open side operating todischarge the reduced material. A table 8 is removably positioned u onthe bed-plate, being preferably detacha ly secured thereto by anextension 9 accommodated in a recess 10 of the bed-plate.

The table 8 constitutes one element of a sizing or reduction apparatus,the other element being here shown as embodying stamps 11, the number ofwhich may vary, but of which three are shown, mounted for reciprocationin a frame 12 supported above the table and operated by a cam shaft 13geared, as at 14, to a power shaft 15.

A hopper 16, to receive the material to be Specification of LettersPatent.

Applicatonied August 1, 1921. Serial No. 488,855.

crushed, is supported by the frame 12l at one l side of the stamps. Thehopper has an outlet 17 controlled by a gate 18* through the medium of alever 19, to supply material onto that edge of the table remote from thedischarge. The gate 18 may obviously by the meansk shown be set to havea predetermined discharge area with. respect to the hopper so that theclinker or other material will be more or less continuously delivered tothe table 8.

A olting or quick return mechanism, indicated generally'at 20, drivenfrom amoving part of the machine, for example, by a belted connectionwith the power shaft 15, is' connected to the bed 3 so as to induce aj'olting or rapid reciprocatory,movement thereof in synchronism with thereduction'actio'n. The quick return mechanismA indicated fat 20, formsno material part of the present invention, and is ofwell-knownconstruction. For

arranged a spring 37. A second bell-crank 38 is pivotally supported at39 in the casing, the lower end of which has a bearing nut 40,adjustable with respect to the pivot 39 through a rod 41 threaded in thebell crank and connected with the nut. A crank 42 is also pivotallysupported in the casing, and is adapted to engage the nut 40, and atoggle 43 has a bearing in the bell crank 34 and crank 42. The upper endof bell crank 38 bears against a nut 44, connected through a rod 45 withthe table 8. A spring 46 maintains contact between said bell crank 38and nut 44. A complete revolution of the element 32 gives areciprocating movement to the table 8. At the end of one stroke of pin33 the toggle 43 is at an angle to the horizontal and at this part ofthe movement the movement transmitted to the table is slowed up, beingobviously accelerated, however, at the end of the opposite stroke.

The effect of the jolting is to subject the being face of the table sothat the material disends in balls 23, seating in an appropriatelymaterial being acted upon by the primary reducing elements to a rubbingor attrition action, to feed fresh material, and to discharge thematerial already acted upon.

'A screen 2l is connected at one end to the discharge edge of the table8, the screen at this point in line with the top surcharged will bedelivered onto, the screen through the jolting of the table. rIheopposite end of the screen is supported `in rocker ,arms 22 terminatingat their lower shaped recess in an adjustable slide plate 24. Throughmovement of the latter the screen may be adjusted as to height and thusthe shaking action of the screen due to the jolting of the table 8 maybe controlled at will. l

Immediately below the screen is a material trough 25 which receivesmaterial passing through the screen, the trough being connected to thescreen by flexible strips 26 which serve the dual function of a guidefor the material and -also a guard to exclude foreign material. A screwconveyor 27 is located in the. trough to remove the screened lmaterial.y A trough 28 and complemental screw conveyor 29 take care ofthe rejections. `A pump 3Q is provided to supply oil or other lubricantto channels in the base 2 to thereby maintain a film or sheet oflubricant between the base and bed-plate. details are unimportant solong` as the system is suchV as to maintain the desired film oflubricant. v v

Since the bed-plate and table are under The constant jolting or rapidreciprocatory movement, it is evident that the stamps or other reducingelements act on material which is always in motion. This makes for akmore effective action of the stamps and a 1. n1 a Samp mui, theCombination er a vertically reciprocating stamp, a horizontal table witha die thereon, means for moving said table in one rectilinear direction`and spring means for rapidlykmovingy the vtable in the oppositedirection. v

2. In a stamp mill, the combination of a reciprocating stamp, a tablewithfa'., die thereon, means for moving said table in one rectilineardirection, spring ymeansr for rapidly moving the table in the oppositedirection, and a screen operatively disposed with relation to and movingin unison with the table.

3. In a stamp mill, the combination'with j stamping means, of a table, adie removably arranged thereon, means for, moving the table in onerectilinear direction, and spring means for moving the table in theopposite direction, the spring means operating more ra idly than thefirst-mentioned means. f

n testimony whereof I` affix my signature.

RALPH H. WARREN.

